Terry warp stop motion



1944- c. E. WHlTTAKER ET AL 2,355,129

TERRY WARP STOP MOTION Filed April 14, 1945 s Sheets-Sheet 1 6747766 15.W/iz'zza /ia r 7 INVENTQRS 8, 1944- c. E. WHITTAKER ET AL 21,355,129

TERRY WARP STOP MOTION Filed April 14, 1943 3 Sheets-Sheet 2 ATTD RN EYEAug. 8, 1944. c. E. WHITTAKER ETAL 2,355,129

TERRY WARP STOP MOTION fril 14, 1943 3 Sheets-Sheet 5 Ma; r/esZW/h'i/QQ) W 5/0a V EN TORS ATTU RN EYE Patented Aug. 8, 1944 2.355429TERRY WARP sToP MOTION Charles E. Whittaker, Gait, Ontario, and GeorgeG. Slough, St. Catharines, Ontario, Canada Application April 14, 1943,Serial No. 483,020

7 Claims,

' Our invention relates to looms, and has among its objects andadvantages the provision of an improved terry warp stop motionattachment. So far as we are aware, no suitable warp stop motion hasbeen devised for automatically stopping a loom using terry when a top orterry Warp end is broken. Since the pile warps become loose when thepile pick is woven in at the fell of the cloth, present types and stylesof drop wires are not suitable. In the present invention, the drop wireis lifted up when the pile pick is woven in at the fell of the cloth,thereby disengaging the drop wires on the pile pick, and allowing theattachment to function on the remaining picks which are woven with tightpile warp ends.

In the accompanying drawings: .Figure 1 is a side view of a loomstructure illustrating our invention applied thereto.

Figure 2 is an elevational view illustrating an operating linkage.

Figure 3 is a top view of the structure of Figure 2.

Figure 4 is a view illustrating an adjustable rod link.

Figure 5 is a view of an adjustab1e rod link coacting with the structureof Figure 4.

Figure 6 is a sectional view alon the line 6- 6 of Figure 5.

Figure '7 is a detail view of a link pivot and turnbuckle.

Figure 8 is a sectional view along the line 8-8 of Figure 7.

Figure 9 is a detail view of a slidable pivot.

Figure 10 is a view of the pivot of Figure 9 but rotated 90 degreesabout its axis, and

Figure 11 is a View of one of the drop wires.

In the embodiment of the invention selected for illustration, Figure 11illustrates a drop wire I2 provided with slots I4 and I6 in the mannerof conventional drop wires. This drop wire is formed to provide aslotted extension, that is, is of greater length than the conventionaldrop wire and is provided with a third slot I8 elongated longitudinallof the wire and above the conventional slots I4 and I6. Figure 1illustrates a gang of drop wires I2 in association with an electriccircuit and a controller 22 along the lines of that illustrated inPatent No. 1,832,- 580, issued November 17, 1931. Two parallel rods 24extend through the slots I 8, which rods are connected into the electriccircuit 20, as by the wires 26.

Figure 1 illustrates the bottom beam end at 28 and the top beam end at30.

In Figures 2 and 3, the rods 24 are supported in blocks 32 through whichthe rods are extended. The blocks 32 are suspended from two arms 34 andan intermediate arm 36 through the medium of rods 38 and 40,respectively.

Figure 4 illustrates one of the rods 38in connection with its respectiveblock 32, the two rods and blocks being identical. The rod 38 has athreaded end 42 threaded in a bore 44 in the block 32 and has a nut 46thereon engageable with the top face of the block for locking the rod onthe block. Set screws 48 are threaded into the block 32 for engagementwith the rods 24.

The rod 40 has an end 56 threaded through the bight v52 of a U-shapedmember 54 having openings 56 in the ends of its legs for connection withthe rods 24. A lock nut 58 is threaded on the end 50 to engage the bight52. The upper ends of the rods 38 and 40 are similarly connected withtheir respective arms 34 and 36. Figure 6 illustrates one suchconnection. A pin 60 extends loosely through an opening 62 in theflattened rod end 64. This end lies adjacent a flange 66 attached to thepin 60, and the end is held on the pin by a cotter pin 68.

The pin 60 is provided with a body I0 slidable in a slot 12 in the arm34. A nut I4 is threaded on the opposite end of the pin 60 to hold thearm 34 between the flange 66 and a washer 16 mounted on the pin adjacentthe nut 14.

All the arms 34 and 36 are fixedly connected with a shaft 18 mounted foroscillation in bearings carried at the outer ends of arm-like brackets82 bolted at 84 to the loom frame 86.

i To the shaft I8 is fixedly connected an arm 88 i which is oscillatedthrough the medium of a lift rod 90 connected with an arm 92 attached tothe pile shaft 94. This shaft is oscillated through the medium of an arm96 and an actuating cam 98.

Figure 7 illustrates the pivotal connection between the upper end of thelift rod 90 and the arm 88, the pivotal connection between the lower endof the lift rod and the arm 92 being the same. A turnbuckle I00 isthreadedly connected with the rod 90 and fixedly related thereto by alock nut I02. This turnbuckle includes a flat end I04 having an openingI06 for pivotal reception of a pin I08. The end I04 lies adjacent aflange IIO on the pin I06 and is held on the pin by a washer II2. Thiswasher is held in place by a cotter pin H4. A flattened body H6 isformed on the pin I08 for slidable reception in a slot I I8 in the arm88. The arm is held between the flange H0 and a nut I 20 threaded on thepin I08. Corresponding reference characters are applied to the lowerpivotal connection of the lift rod 90.

The extra slot provided in the upwardly directed longitudinal extensionof the drop wire l2 permits the drop wire to be lifte when the terryloom is operating on the loose ick or pile pick of the terry warp,thereby disengaging the pile drop wires from forming contact with themechanical or electrical stop motion.

The pins 60 may be shifted to different positions longitudinally of thearms 34 and 36 and secured in such positions through tightening of thenuts 14. The flattened ends 64 pivot freely on the pins. The pm 108 isalso adjustable to different positions longitudinally of its respectivearm and may be fixedly secured against shifting through tightening ofthe nut I20.

Without further elaboration, the foregoing will so fully explain ourinvention that others may, by applying current knowledge, readily adaptthe same for use under various conditions of serv- We claim:

1. In a terry loom having a stop motion including drop wires, a terrywarp stop motion comprising a slotted extension on said drop wires, rodsextending through said slotted extensions, a rock shaft, arm means fixedto said rock shaft and having an operating connection with said rods toraise and lower the latter through rocking motion of said rock shaft,and means for rocking said rock shaft, said slotted extensions allowingthe drop wires to be lifted when the loom is operating on the loose pickor pile pick of the terry warp to bring the drop wires out of contactwith said first mentioned stop motion.

2. The invention described in claim 1' wherein said last mentioned meanscomprise a loom pile shaft, an arm attached to the pile shaft, a secondarm fixed to said rock shaft, and a link connecting the second arm withthe arm on the pile shaft.

3. The invention described in claim 1 wherein said arm means comprise aplurality of arms, and in which said operating connection compriseslinks respectively connecting the arms with said rods.

4. The invention described in claim 1 wherein blocks carry said rods,said arm means comprising arms attached to the rock shaft, and linksconnecting said arms with said blocks.

5. The invention described in claim 1 wherein said arm means comprisethree arms fixed to the rock shaft, two blocks carrying said rods, linksattached to the respective blocks and pivotally connected with two ofsaid three arms, and an operating connection between the third arm andsaid rods.

6. The invention described in claim 1 wherein said last mentioned meansincludes a rotary loom pile shaft, a rotary cam having an operatingconnection with said pile shaft to rock the latter, a pile shaft arm, alift rod pivotally connected at one end with said pile shaft arm, and anarm fixed to said rock shaft and pivotally connected with the oppositeend of said lift rod;

'7. In a terry loom having a stop motion including drop Wires, a terrywarp stop motion comprising a slotted extension on said drop Wires, rodsextending through said slotted extensions, a rock shaft, a plurality ofarms fixed to said rock shaft, links attached to said rods and havingpivotal connections with the respective plurality of arms, said pivotalconnections being adjustable lon-gitudinally of said plurality of arms,said rods being raised and lowered through rocking motion of said rockshaft, a loom pile shaft having a pile shaft arm, a fourth arm fixed tosaid rock shaft, a lift rod having pivotal connections with said pileshaft arm and said fourth arm, said latter mentioned pivotal connectionsbeing adjustable longitudinally of their respective arms, and cam meansfor imparting rocking motion to said pile shaft, said slotted extensionsallowing the drop Wires to be lifted when the loom is operating on theloose pick or pile pick of the terry warp, to bring the drop wires outof contact with said first mentioned stop motion.

CHARLES E. WHITTAKER. GEORGE G. SLOUGH.

